Dr Steve Portugal

  1. Article › Research › Peer-reviewed
  2. Published

    Perch height predicts dominance rank in birds

    Portugal, S., Sivess, L., Martin, G., Butler, P. & White, C., Apr 2017, In: Ibis. 159, 2, p. 456–462 7 p.

    Research output: Contribution to journalArticlepeer-review

  3. Published

    Pigeon leadership hierarchies are not dependent on environmental contexts or individual phenotypes

    Sankey, D., Biro, D., Ricketts, R., Shepard, E. & Portugal, S., May 2022, In: Behavioural Processes. 198, 104629.

    Research output: Contribution to journalArticlepeer-review

  4. Published

    Predicting the rate of oxygen consumption from heart rate in barnacle geese: effects of captivity and annual changes in body condition.

    Portugal, S., 9 Apr 2009, In: Journal of Experimental Biology.. 212, p. 2941-2948 doi:10.1242/jeb.034546.

    Research output: Contribution to journalArticlepeer-review

  5. Published

    Rapid development of brood-parasitic cuckoo embryos cannot be explained by increased gas exchange through the eggshell

    Portugal, S. J., Hauber, M. E., Maurer, G., Stokke, B. G., Grim, T. & Cassey, P., 1 Jan 2014, In: Journal of Zoology . 293, 4, p. 219-226 8 p.

    Research output: Contribution to journalArticlepeer-review

  6. Published

    Recording raptor behavior on the wing via accelerometry

    Halsey, L. G., Portugal, S. J., Smith, J. A., Murn, C. P., Wilson, R. P. & Portugal, S., 1 Jun 2009, In: Journal of Ornithology . 80, 2, p. 171-177 7 p.

    Research output: Contribution to journalArticlepeer-review

  7. Published

    Respirometry: Anhydrous drierite equilibrates with carbon dioxide and increases washout times

    White, C. R., Portugal, S. J., Martin, G. R., Butler, P. J. & Portugal, S., 1 Sep 2006, In: Physiological and Biochemical Zoology. 79, 5, p. 977-980 4 p.

    Research output: Contribution to journalArticlepeer-review

  8. Published

    Review: An embryo's eye view of avian eggshell pigmentation

    Maurer, G., Portugal, S. J., Cassey, P. & Portugal, S., 1 Nov 2011, In: Journal of Avian Biology. 42, 6, p. 494-504 11 p.

    Research output: Contribution to journalArticlepeer-review

  9. Published

    Self-organization of collective escape in pigeon flocks

    Papadopoulou, M., Hildenbrandt, H., Sankey, D., Portugal, S. & Hemelrijk, C., 10 Jan 2022, In: PLoS Computational Biology. 18, 1, e1009772.

    Research output: Contribution to journalArticlepeer-review

  10. Published

    Speckles of cryptic black-headed gull eggs show no mechanical or conductance structural function

    Maurer, G., Portugal, S. J., Mikšík, I. & Cassey, P., 1 Nov 2011, In: Journal of Zoology . 285, 3, p. 194-204 11 p.

    Research output: Contribution to journalArticlepeer-review

  11. Published

    Speed consensus and the ‘Goldilocks principle’ in flocking birds (Columba livia)

    Sankey, D., Shepard, E., Biro, D. & Portugal, S., Nov 2019, In: Animal Behaviour. 157, p. 105-119 15 p.

    Research output: Contribution to journalArticlepeer-review